A "How To" question on Sunfire SDS 12 set up. Any advice welcome.


Hey All, long time lurker and I love the site.

My question involves the subwoofer set up options for my Sunfire SDS-12 subwoofer especially as it relates to my Frankensteinium system.

Details: my Media Room is 20'x20'x13' (it has avaulted ceiling), with "the system" on one side 2 feet away from the wall, speakers are 10' apart & my couch is about 16 feet away. The sub is in the lefthand corner a foot away from each wall facing directly FORWARD.

The system...and here is where it becomes really tricky...vintage & working perfectly 1993 B&K Sonata Pro-10MC preamp & matching 1993 B&K Sonata ST-202+ amplifier, a 2008 pair of Monitor Audio Gold RS8 speakers, the subwoofer in question and trickiest part...the signal source is an OPPO Digital BDP-105 3D blu-ray player that is used for both HT & music (primarily Zeppelin, Yes, Pink Floyd but also 'classic EDM' like Orbital, Underworld,the Chemical Brothers, etc.

So those are the details. Now we know one of the big differences between the SDS and the HRS series is the lack of a directly capable speaker connection on the SDS. I have line-in & LFE RCA jacks that run straight from the preamp. There are also 2 RCA jack line-outs that I am not sure of. I mean, I am not sure what they do. So, on the preamp which has 2 preamp out RCA jacks, one set runs to the amp &the other to the sub. Clouding the issue is the OPPO itself allows you some limited but important tools (like setting the crossover frequency) that cold alter the sound at source.

Now, the real 'problem'. The whole thing sounds GREAT. I really cannot complain. But...I have always been cloudy on proper true subwoofer set up and with the mixture of 90', 2000's, and 2010+ gear, my view may be further clouded. My question is, even though I think it sounds great right now, is there something I have missed that could improve it further? My thanks to any who feel like answering.

stereoisomer

Showing 2 responses by yogiboy

The way you have it hooked up now, you are running your speakers full range. If go from the preamp into the line in on the sub then out from the line out on the sub to the inputs to the amp then you will be using the high pass filter option that the sub has.You can give it a try and see what sounds better!
Yes that is the correct way to hook up a sub using the high pass filter! You can try it both ways and see which way you like best. Some prefer running full range. I prefer using a high pass filter with the sub and the speakers that I use! It all depends on blending the sub with the mains that will give you the best results!